//
#include <HYDROData_PolylineOperator.h>
-#include <HYDROData_TopoCurve.h>
#include <HYDROData_Document.h>
+#include <HYDROData_TopoCurve.h>
+
+#include <CurveCreator_Utils.hxx>
+
#include <BRepAdaptor_Curve.hxx>
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
const gp_Pnt2d& thePoint,
double theTolerance ) const
{
+ if (thePolyline.IsNull())
+ {
+ return false;
+ }
+
std::vector<gp_Pnt2d> aPointsList( 1 );
aPointsList[0] = thePoint;
std::vector<TopoDS_Wire> aCurves;
bool HYDROData_PolylineOperator::Split( const Handle( HYDROData_Document )& theDoc,
const Handle( HYDROData_PolylineXY )& thePolyline,
const Handle( HYDROData_PolylineXY )& theTool,
- double theTolerance ) const
+ double theTolerance,
+ bool& theIsIntersected) const
{
+ if (thePolyline.IsNull() || theTool.IsNull())
+ {
+ return false;
+ }
+
HYDROData_SequenceOfObjects aSeq;
aSeq.Append( theTool );
- return split( theDoc, thePolyline, aSeq, theTolerance, -1 );
+ return split( theDoc, thePolyline, aSeq, theTolerance, -1, theIsIntersected);
}
bool HYDROData_PolylineOperator::Split( const Handle( HYDROData_Document )& theDoc,
for( int i=f; i<=l; i++ )
{
Handle( HYDROData_PolylineXY ) aPolyline = Handle( HYDROData_PolylineXY )::DownCast( thePolylines.Value( i ) );
- if( !split( theDoc, aPolyline, thePolylines, theTolerance, i ) )
+ bool isIntersected;
+ if( !split( theDoc, aPolyline, thePolylines, theTolerance, i, isIntersected) )
return false;
}
return true;
const Handle( HYDROData_PolylineXY )& thePolyline,
const HYDROData_SequenceOfObjects& theTools,
double theTolerance,
- int theIgnoreIndex ) const
+ int theIgnoreIndex,
+ bool& theIsIntersected) const
{
+ theIsIntersected = false;
+
+ if (thePolyline.IsNull())
+ {
+ return false;
+ }
+
std::vector<TopoDS_Wire> aCurves;
GetWires(thePolyline, aCurves);
std::vector<TopoDS_Wire> aToolCurves;
{
Handle( HYDROData_PolylineXY ) aToolPolyline =
Handle( HYDROData_PolylineXY )::DownCast( theTools.Value( i ) );
- std::vector<TopoDS_Wire> aTCurves;
- GetWires(aToolPolyline, aTCurves);
- append( aToolCurves, aTCurves);
+ if (!aToolPolyline.IsNull())
+ {
+ std::vector<TopoDS_Wire> aTCurves;
+ GetWires(aToolPolyline, aTCurves);
+ append( aToolCurves, aTCurves);
+ }
}
+ if (aToolCurves.empty())
+ {
+ return false;
+ }
+
const int aPSCount = aCurves.size();
const int aTSCount = aToolCurves.size();
std::vector<TopoDS_Shape> aResult;
}
std::deque<HYDROData_TopoCurve> aSplittedCurves;
- aCurve.Cut(aParams, aSplittedCurves);
+ theIsIntersected |= aCurve.Cut(aParams, aSplittedCurves);
std::deque<HYDROData_TopoCurve>::const_iterator aCIt =
aSplittedCurves.begin();
std::deque<HYDROData_TopoCurve>::const_iterator aLastCIt =
}
return true;
}
+
+double HYDROData_PolylineOperator::ReduceDeflection(
+ const double theDeflection,
+ HYDROData_TopoCurve& theCurve,
+ int& thePieceCount)
+{
+ // Construct the approximating B-spline.
+ std::list<gp_XYZ> aPs;
+ if (!theCurve.ValuesInKnots(aPs))
+ {
+ return -1;
+ }
+
+ Handle(TColgp_HArray1OfPnt) aPs2 = new TColgp_HArray1OfPnt(1, aPs.size());
+ {
+ std::list<gp_XYZ>::const_iterator aLastPIt = aPs.end();
+ std::list<gp_XYZ>::const_iterator aPIt = aPs.begin();
+ for (int aPN = 1; aPIt != aLastPIt; ++aPN, ++aPIt)
+ {
+ aPs2->SetValue(aPN, *aPIt);
+ }
+ }
+ Handle(Geom_BSplineCurve) aBSpline2;
+ const bool isClosed = theCurve.IsClosed();
+ if (!CurveCreator_Utils::constructBSpline(aPs2, isClosed, aBSpline2))
+ {
+ return -1;
+ }
+
+ // Calculate the piece deflections.
+ std::deque<double> aSqDefls;
+ double aMaxSqDefl = 0;
+ std::list<TopoDS_Edge>& aEdges = theCurve.Edges();
+ std::list<TopoDS_Edge>::const_iterator aLastEIt = aEdges.end();
+ {
+ std::list<TopoDS_Edge>::const_iterator aEIt = aEdges.begin();
+ for (int aPrevKCount = 0; aEIt != aLastEIt; ++aEIt)
+ {
+ TopLoc_Location aLoc;
+ double aParams[2];
+ Handle(Geom_BSplineCurve) aBSpline = Handle(Geom_BSplineCurve)::DownCast(
+ BRep_Tool::Curve(*aEIt, aLoc, aParams[0], aParams[1]));
+ const int aKCount = aBSpline->NbKnots();
+ for (int aKN = 1; aKN < aKCount; ++aKN)
+ {
+ const double aParam =
+ (aBSpline->Knot(aKN) + aBSpline->Knot(aKN + 1)) * 0.5;
+ const double aParam2 = (aBSpline2->Knot(aPrevKCount + aKN) +
+ aBSpline2->Knot(aPrevKCount + aKN + 1)) * 0.5;
+ const double aSqDefl = Abs(aBSpline->Value(aParam).
+ SquareDistance(aBSpline2->Value(aParam2)));
+ aSqDefls.push_back(aSqDefl);
+ if (aMaxSqDefl < aSqDefl)
+ {
+ aMaxSqDefl = aSqDefl;
+ }
+ }
+ aPrevKCount += aKCount - 1;
+ }
+ }
+
+ // Check whether the reducing is necessary.
+ const double aMaxDefl = Sqrt(aMaxSqDefl);
+ if (aMaxDefl <= theDeflection)
+ {
+ return aMaxDefl;
+ }
+
+ // Reduce the deflections.
+ const double aThresSqDefl =
+ Max(aMaxSqDefl * 0.25, theDeflection * theDeflection);
+ std::list<TopoDS_Edge>::iterator aEIt = aEdges.begin();
+ std::deque<double>::const_iterator aSqDIt = aSqDefls.begin();
+ thePieceCount = 0;
+ for (; aEIt != aLastEIt; ++aEIt)
+ {
+ TopLoc_Location aLoc;
+ double aParams[2];
+ Handle(Geom_BSplineCurve) aBSpline = Handle(Geom_BSplineCurve)::DownCast(
+ BRep_Tool::Curve(*aEIt, aLoc, aParams[0], aParams[1]));
+ Handle(Geom_BSplineCurve) aBSpline2 =
+ Handle(Geom_BSplineCurve)::DownCast(aBSpline->Copy());
+ const int aKCount = aBSpline->NbKnots();
+ for (int aKN = 1; aKN < aKCount; ++aSqDIt, ++aKN)
+ {
+ if (*aSqDIt > aThresSqDefl)
+ {
+ aBSpline2->InsertKnot(
+ (aBSpline->Knot(aKN) + aBSpline->Knot(aKN + 1)) * 0.5);
+ }
+ }
+ TopoDS_Edge aEdge;
+ BRep_Builder().MakeEdge(aEdge, aBSpline2, Precision::Confusion());
+ BRep_Builder().Add(aEdge, TopExp::FirstVertex(*aEIt));
+ BRep_Builder().Add(aEdge, TopExp::LastVertex(*aEIt));
+ thePieceCount += aBSpline2->NbKnots() - 1;
+ *aEIt = aEdge;
+ }
+ return aMaxDefl;
+}